The Bathmate Hercules uses the power of water pressure to safely increase the girth and length of your penis. It's 250 percent more efficient than air pumps, and you can see significant results in about 15 minutes.

Take your Bathmate Hercules into your shower or bathtub. After you fill it with water, you insert your erection and use the comfortable pump to increase the pressure. A nozzle at the top sprays out excess water without letting in air. You can easily view the process through the plastic tube, and the results are remarkable; many guys report gains of one inch or more along with improved stamina.

Unlike traditional pumps, the Bathmate Hercules is 95 percent effective. It fits average-sized guys (up to a maximum of 7.08-inches in length and 1.81-inches in diameter). This is a great beginner pump, and it's completely safe for regular use. For a larger version with the same design, check out the Bathmate Goliath.